Double-acting-pump power head



mar' iil 1924. 1,486,589

C. L. KESSLER DOUBLE ACTING PUMP POWER HEAD Filed Oct. 13, 1919 vINVENTOR. 694E455 L4 Kasai/a A TTORNE Y Patented Mar. 11, 192 1.

warren CHARLES L. KESSLEB, OF SAN DIEGO, CALIFORNIA.

IDOUBLE-AC TING-PUME POWER HEAD.

Application filed Dotober 13, 1919. Serial No. 330,181.

To all 10710922 it may concern Be it known that I, CHARLES L. Knssnnn, acitizen of the United States, residing at San Diego, in the county ofSan Diego and State of California, have invented certain new and usefulImprovements in Double-Acting- Pump Power Heads, of which the followingis a specification.

My invention relates to a power head for w double acting pumps and theobjects of my invention are: first, to providea power head for pumps ofthis class in which the downward stroke of both plungers is more rapidthan the upward stroke; second, to provide a power head of this class inwhich the upward stroke of one plunger leads and laps over the stroke ofthe other plunger so that both plungers move in one direction during aportion of one stroke; third, to provide a power head of this classwhich is very simple and economical of construction, durable, compact,highly eflicient, easy to operate, easy to install and which will notreadily deteriorate or get out of order.

With these and other objects in view as will appear hereinafter, myinvention consists of certain novel features of construction,combination and arrangement of parts and portions as will be hereinafterdescribed in detail and particularly'set forth in the appended claims,reference being had to the accompanying drawings and to the charactersof reference thereon which form a part of this application, in which:

Figure 1 is a side elevational view of my pump power head showingportions in elevation to facilitate the illustration and Fig. 2 is aside elevational View at right angles thereto.

Similar characters of reference refer to similar parts and portionsthroughout the several views of the drawings.

The plunger rod 1, plunger rod 2, casing 3, stuffing box 4, crosshead 5,crosshead 6, connecting rod 7, connecting rod 8, shaft 9, shaft 10, gear11, gear 12, pinion 13, main drive shaft 14, sheave 15, bracket 16 andbase 17 constitute the principal'parts and portions of my pump powerhead.

The base 17 may be of any shape or form, preferably constructed ofconcrete and secured thereto is bracket 16 which is provided withbearings for the shafts 9, 10 and 14 in certain spaced relation to eachother as shown best in Fig. 1 of the drawings. It will be noted thateach of the shafts are pro= vided with a pair of bearings as shown bestin Fig. 2 of the drawings. Mounted on the one end of the shaft 14 whichis the main drive shaft is a sheave 15 for receiving the power from anydriving mechanism. Mounted on the other end of this shaft 14 is a pinion 13 which meshes with a gear wheel 12 secured on the extended end ofthe shaft 10. This gear wheel 12 meshes with another gear 11 of the samediameter so that the power is transmitted from the sheave 15 through theshaft 14 and gear 13 to the gear 12 and gear 11. It will be noted thatthe shafts 9 and 10 are preferably spaced some distance on oppositesides of the plunger rods 1 and 2 and the shaft 9 is preferably placedabove the shaft 10. Pivotally connected to the gear 11 is a connectingrod 7 which extends downwardly and which is pivotally connected to thecrosshead 5 which is secured to the upper end of the plunger rod 2,which plunger rod is a hollow plunger rod and in which is reciprocallymounted the plunger rod 1. This crosshead 5 is provided with a stuffingbox 5 adapted to provide a tight joint between the two plunger rods 1and 2, and prevent leaking and the upper end of the casing 3 is providedwith a stuffing box 4 to provide a tight joint between the plan ger rod2 and the'casing 3. To the upper end of the bracket 16 is secured abearing member 16 which serves as a support for the upper end of therod 1. To the gear 12 is pivotally connected the connecting rod 8 whichextends upwardly and to its upper end is pivotally connected thecrosshead 6 which is secured tothe rod 1. It will be noted that theconnecting rod 7 serves as a pull or tension rod while the rod 8 servesas a push or compression rod. It will also be noted that the journals onthe gears 11 and 12 on which the one end of the connecting rods aremounted are so positioned with relation to each other that the oneconnecting rod moves substantially in the opposite direction as theother, except during a portion of each upward stroke of each plunger orconnecting rod when said strokes overlap each other.

Though I have shown and described a particular construction, combinationand arrangement of parts and portions 1 do not wish to be limited tothis particular construction, combination and arrangement but desire toinclude in the purview of my invention the construction, combination andarrangement substantially as set forth in the appended claims.

It is obvious that with this construction there is provided a' doubleacting pump power head in which the two drive gears are in certainspaced position from the plunger rods so that the one serves as a pullrod and the other as a push rod, that the device as a whole is verysimple and economical of construction and easy to install, durable andeflicient.

It is further obvious that with the spacing and positioning of the gears11 and 12 and with the positioning of the connecting rod journals onsaid gears, as shown and tie scribed, there is provided a pump powerhead with double acting, oppositely moving plunger rods in which bothmove in the same direction during a portion of one stroke.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent, is:

1. A power head for double acting pumps, including a supporting framework, a pair of pump rods, a pair of intermeshing gears revolublymounted one above the other on said supporting framework, an equal.distanoe on opposite sides of one of the pump plunger rods, aconnecting rod connected with the lower gear and extending upwardly andits upper end engaging one of the pump rods and a connecting rodconnecting with the upper gear extending downwardly and its lower endconnecting with the other pump rod, said connecting rods and said pumprods lying in a common plane, whereby said power head is simple andcompact and the plunger rods will travel faster in one direction than inthe other and both plungers move in one direction during a portion ofone stroke.

2. Apower head for double acting pumps, including a supportingframework, a pair o pump ,rods, a pair of intermeshing gears revolublymounted on one side only of supporting framework on opposite sides ofone of the pump plunger rods and positioned so that the .aXle of one isconsiderably above the axle of the other, a connecting rod connectedwith the lower gear and extending upwardly and its upper end engagingone of the pump rods, a connecting rod connecting with the upper gearextending downwardly and its lower end connecting the other pump rod,said connecting rods and said pump rods lying in a common plane andmeans for driving one of said gears, consisting of a pinion meshing withone of said gears, a shaft revolubly mounted on said framework and adrive wheel on the opposite side of said framework from said pinion,whereby said power head is simple and compact and the plunger rods willtravel faster in one direction than in the other and both plungers movein one direction during a portion of one stroke.

3. A power head for double acting pumps, including a supportingframework, a main drive shaft revolubly mounted therein, a pinionsecured to said drive shaft, at one side only of said framework, a gearrevolubly mounted on an axis spaced at one side of the pump rods on oneside only of said framework intermeshing with said pinion, another gearequally spaced on the opposite side of said pump rods above said firstmentioned gear intermeshing withsaid gear, a crosshead secured to one ofthe pump rods, above said gears another crosshead secured to the otherof the pump rods below said gears, a connecting rod, connecting saidfirst mentioned gear with the upper crosshead, and a connecting rodconnectingsaid second mentioned gear with the other crosshead, saidconnecting rods and said pump rods lying in a common plane whereby saidpower head is simple and compact and the plunger rods will travel fasterin one direction than in the other and both plungers move in onedirection during a portion of one stroke. 7

4C. In a power head for double acting pumps, the combination with asolid pump rod and a hollow pump rod telescopically mounted thereon, of.a supporting framework positioned at one side only of said pump rods,intermeshing gears revolubly positioned on said framework between saidframework and said pump rods and one positioned above the other onopposite sides of the solid pump rod, a connecting rod connecting withthe lower gear and extending upwardly and its upper end connecting withthe solid pump rod, another connecting rod connecting with the uppergear and extending downwardly and its lower end connecting with thehollow pump rod andineans for driving one of said gears, said connectingrods and said pump rods lying in a common plane whereby said power headis simple and compact and the plunger rods will travel faster in onedirection than in the other and both plungers move in-o'ne directionduring a port-ion of one stroke. 7

In testimony whereof, I have hereunto set my hand at San Diego,California, this 6th day of October, 1919.

CHARLES L. KESSLER.

